If running WCG on an i5-6400 on the CPU cores, and running F@H on the RX 460 4GB GPU, do we want to have F@H to use the lowest CPU priority possible, or does that retard the GPU usage, because the "feeder" process can't get enough CPU time from the 4 WCG threads?
Or should I set WCG to crunch on only 3 cores? Leaving one for F@H and the user?
Edit: I set WCG to only use 75% of the CPU cores, which, on a quad-core, should result in only 3 cores being used by WCG.
But FahCore_21.exe still only taking 2.1% CPU time, and each of three WCG tasks are now taking 30% CPU time.
I don't understand that. The only way than any one process should be able to take more than 25% CPU time on a quad-core, is if they are multi-threaded.
Are WCG tasks now multi-threaded / take multi-cores, instead of one thread per tasks (thus, running three tasks)?
This doesn't make sense.
Edit: It appears to be a reporting bug in Task Manager, possibly related to CPU clock speed. (I'm overclocked, from 100 BCLK to 150 BCLK.)
OCCT's monitoring shows 80% CPU usage, and temps are only 86C, when they were 93C with all four WCG tasks running.
So, it seems like WCG tasks are single-threaded, and running three of them only results in 80-ish % CPU usage, when you add in my other processes.